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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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cae19b5902
This code was added for some ancient SH-4 solution engines with peculiar boot ROMs that did silly things to the UBC MSTP bits. None of these have been in the wild for years, and these days the clock framework wraps up the MSTP bits, meaning that the UBC code is one of the few interfaces that is stomping MSTP bits underneath the clock framework. At this point the risks far outweigh any benefit this code provided, so just kill it off. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
65 lines
1.6 KiB
C
65 lines
1.6 KiB
C
/*
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* include/asm-sh/ubc.h
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*
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* Copyright (C) 1999 Niibe Yutaka
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* Copyright (C) 2002, 2003 Paul Mundt
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*/
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#ifndef __ASM_SH_UBC_H
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#define __ASM_SH_UBC_H
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#ifdef __KERNEL__
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#include <cpu/ubc.h>
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/* User Break Controller */
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#if defined(CONFIG_CPU_SUBTYPE_SH7707) || defined(CONFIG_CPU_SUBTYPE_SH7709)
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#define UBC_TYPE_SH7729 (current_cpu_data.type == CPU_SH7729)
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#else
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#define UBC_TYPE_SH7729 0
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#endif
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#define BAMR_ASID (1 << 2)
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#define BAMR_NONE 0
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#define BAMR_10 0x1
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#define BAMR_12 0x2
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#define BAMR_ALL 0x3
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#define BAMR_16 0x8
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#define BAMR_20 0x9
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#define BBR_INST (1 << 4)
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#define BBR_DATA (2 << 4)
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#define BBR_READ (1 << 2)
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#define BBR_WRITE (2 << 2)
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#define BBR_BYTE 0x1
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#define BBR_HALF 0x2
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#define BBR_LONG 0x3
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#define BBR_QUAD (1 << 6) /* SH7750 */
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#define BBR_CPU (1 << 6) /* SH7709A,SH7729 */
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#define BBR_DMA (2 << 6) /* SH7709A,SH7729 */
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#define BRCR_CMFA (1 << 15)
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#define BRCR_CMFB (1 << 14)
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#if defined CONFIG_CPU_SH2A
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#define BRCR_CMFCA (1 << 15)
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#define BRCR_CMFCB (1 << 14)
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#define BRCR_CMFDA (1 << 13)
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#define BRCR_CMFDB (1 << 12)
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#define BRCR_PCBB (1 << 6) /* 1: after execution */
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#define BRCR_PCBA (1 << 5) /* 1: after execution */
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#define BRCR_PCTE 0
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#else
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#define BRCR_PCTE (1 << 11)
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#define BRCR_PCBA (1 << 10) /* 1: after execution */
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#define BRCR_DBEB (1 << 7)
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#define BRCR_PCBB (1 << 6)
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#define BRCR_SEQ (1 << 3)
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#define BRCR_UBDE (1 << 0)
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#endif
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#endif /* __KERNEL__ */
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#endif /* __ASM_SH_UBC_H */
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